4 sec in total
741 ms
2.9 sec
315 ms
Welcome to cndahua.com homepage info - get ready to check Cn Dahua best content for China right away, or after learning these important things about cndahua.com
Ningbo Dahua Grinding Wheel Co., Ltd. is a well-known manufacturer and supplier of Grinding Wheel, Cutting Wheel, Grinding Disc and Cutting Disc in China
Visit cndahua.comWe analyzed Cndahua.com page load time and found that the first response time was 741 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
cndahua.com performance score
name
value
score
weighting
Value6.5 s
2/100
10%
Value16.6 s
0/100
25%
Value20.0 s
0/100
10%
Value2,700 ms
3/100
30%
Value0.741
6/100
15%
Value22.5 s
1/100
10%
741 ms
1058 ms
989 ms
989 ms
993 ms
Our browser made a total of 41 requests to load all elements on the main page. We found that all of those requests were addressed to Cndahua.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Cndahua.com.
Page size can be reduced by 124.0 kB (17%)
731.3 kB
607.3 kB
In fact, the total size of Cndahua.com main page is 731.3 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 646.4 kB which makes up the majority of the site volume.
Potential reduce by 21.8 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 4.6 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 21.8 kB or 80% of the original size.
Potential reduce by 90.9 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Cn Dahua needs image optimization as it can save up to 90.9 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 9.0 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 9.0 kB or 19% of the original size.
Potential reduce by 2.3 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Cndahua.com needs all CSS files to be minified and compressed as it can save up to 2.3 kB or 22% of the original size.
Number of requests can be reduced by 6 (15%)
40
34
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cn Dahua. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
cndahua.com
741 ms
jquery-1.8.0.min.js
1058 ms
json2.js
989 ms
common.min.js
989 ms
common.css
993 ms
home.css
131 ms
mosaic.1.0.1.js
129 ms
lrtk.js
131 ms
tb_1.js
129 ms
head_bg.jpg
124 ms
top.jpg
124 ms
index_about_bg.jpg
127 ms
about_pic.jpg
207 ms
f1126d6b0bab9aaf2593c4a93bc0f7eb.jpg
123 ms
782381f010481ce711c297378370b6de.jpg
124 ms
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127 ms
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128 ms
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140 ms
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142 ms
ccdd451f972db5ea952bc142e0dfe795.jpg
249 ms
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248 ms
0a736b359e52f25da97801ac60633f50.jpg
258 ms
89c7d75a65b12321f75a6dcb759f07a3.jpg
333 ms
61962d9b327fe8f799edfe03f3eba7f8.jpg
328 ms
11cff3e65dffd24d55d80ff4ba4462b9.png
507 ms
hot_pro_bg.jpg
190 ms
hover-magnify.png
128 ms
111_1.jpg
237 ms
cat_1.jpg
299 ms
cat_2.jpg
427 ms
cat_3.jpg
336 ms
cat_4.jpg
317 ms
cat_5.jpg
386 ms
cat_6.jpg
423 ms
cat_7.jpg
422 ms
index_newsbg.jpg
504 ms
tb_bg.jpg
440 ms
dd.jpg
493 ms
foot_tit.jpg
531 ms
dd1.jpg
534 ms
public.js
71 ms
cndahua.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
cndahua.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
cndahua.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cndahua.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Cndahua.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
cndahua.com
Open Graph description is not detected on the main page of Cn Dahua. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: